Reducing-resistant crucible for smelting titanium and titanium alloy

Abstract

The utility model relates to an anti-shrinkage crucible for titanium and titanium alloy smelting, which comprises a barrel, a flange is fixedly connected to the upper end of the barrel, and rib plates are fixedly arranged on the outer side wall of the barrel, so that under the action of the rib plates, not only is the local strength of the barrel increased, but also the heat dissipation area of a concentrated heating area is increased, the barrel has a remarkable anti-shrinkage effect, and the service life of the barrel is prolonged. And the service life of the crucible is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to a production device for titanium and titanium alloys, in particular to a diameter reduction-resistant crucible for smelting titanium and titanium alloys. Background Art

[0002] The high-temperature smelting of titanium and titanium alloys must be carried out in a special vacuum consumable shell furnace, and the crucible is an important part of the shell furnace. At present, a water-cooled copper crucible is usually used as a container tool to contain and carry the smelted titanium and titanium alloy ingots. The electrode block is located at the bottom of the crucible after smelting. During the smelting process of titanium and titanium alloys in the vacuum consumable furnace, the smelted titanium and titanium alloys will fall to the bottom of the crucible due to gravity and form an accumulation with a large mass. At the same time, the heat dissipation effect of the concentrated heating area is limited, which can easily cause the crucible to shrink in diameter, seriously affecting the crucible. Crucible service life, taking a crucible with a diameter of 1040mm as an example, it is usually used in a 10-ton vacuum consumable furnace, which means that the weight of the titanium and titanium alloy ingots that fall to the bottom of the crucible due to gravity and form an accumulation reaches about 10 tons. However, since the crucible is clamped on the upper edge of the lower furnace chamber of the consumable furnace by the crucible flange, the force on the flange at this time includes not only the weight of the 10-ton ingot but also the weight of the crucible cylinder of about 3.4 tons. When the cooling water goes up from the bottom of the crucible to the upper part, the temperature is relatively high, so the crucible is prone to shrinkage, which seriously threatens the life of the crucible. Utility Model Content

[0003] In view of the problems existing in the prior art, the utility model proposes an anti-shrinkage crucible for smelting titanium and titanium alloys. Under high temperature and heavy load-bearing conditions, the local strength of the cylinder is increased, and the heat dissipation area of ​​the concentrated heating zone is increased, so that the cylinder has a significant anti-shrinkage effect, which greatly extends the service life of the crucible.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides an anti-shrinkage crucible for smelting titanium and titanium alloys, characterized in that it comprises a cylinder, the upper end of the cylinder is fixedly connected with a flange, the outer side wall is fixedly provided with a rib plate, and the outer diameter of the cylinder is preferably 1040mm.

[0006] Preferably, the outer side wall of the cylinder is provided with multiple rib plates at intervals from top to bottom.

[0007] Preferably, the outer side wall of the cylinder is provided with a rib plate.

[0008] Preferably, the interval between every two ribs is 45 degrees.

[0009] Preferably, the distance between the center of the rib plate and the lower end of the flange is 0.8-1.2 m.

[0010] Preferably, the rib plate is in the shape of an elongated strip, with a length of 700 to 900 mm, a width of 20 to 30 mm, and a height of 20 to 30 mm.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model arranges a rib plate outside the crucible cylinder body to strengthen the local strength of the crucible cylinder body, and because the rib plate is convex, the heat dissipation area of ​​the concentrated heating zone is increased, so that the cylinder body of the crucible has a significant anti-shrinkage effect under the condition of high temperature and heavy load, thereby extending the service life of the crucible. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the crucible of the utility model;

[0014] Reference numerals: 101 cylinder, 102 flange, 103 rib plate. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] refer to Figure 1 A shrinkage-resistant crucible for melting titanium and titanium alloys comprises a cylinder 101, a flange 102 is fixedly connected to the upper end of the cylinder 101, and a rib plate 103 is welded to the outer wall. Preferably, the rib plate 103 is arranged in a circle along the circumferential direction on the outer wall of the cylinder 101, and the distance between the center of the rib plate 103 and the lower end of the flange 102 is preferably 1.0 m.

[0017] In the above embodiment, during use, the flange 102 is stuck on the upper edge of the lower furnace chamber of the consumable furnace, the crucible is placed in the cooling device, and cold water below 30 degrees flows in from the bottom of the cooling device. After cooling the crucible, the temperature rises and flows out from the opening at the upper end of the cooling device. The distance from the upper end of the cooling device to the lower end of the flange 102 is generally about 1m. The hot water used for outflow and the heavy load of the crucible make the cylinder 101 form a concentrated heating area at a position about 1m away from the lower end of the flange 102, which is easy to shrink. In this embodiment, a circle of ribs is welded on the cylinder 101 at a position 1m away from the lower end of the flange 102. The plate 103, on the one hand, increases the strength of this place, and on the other hand, the rib plate 103 is convex on the surface of the cylinder 101, and the cooling water flows through, which increases the heat dissipation area. At the same time, when the crucible is placed unbalanced, the rib plate 103 also guides the water, so that the water flows through between the two rib plates 103, to prevent the cylinder 101 from having high cooling water on one side and low cooling water on the other side, resulting in uneven cooling. This embodiment takes into account the two aspects of strengthening the strength of the concentrated heating area of ​​the cylinder 101 and improving the heat dissipation efficiency of the concentrated heating area, and a circle of rib plates 103 is set on the outer wall of the concentrated heating area of ​​the cylinder 101, which significantly extends the life of the crucible.

[0018] Preferably, the interval between every two ribs 103 is 45 degrees, and the ribs 103 are in the shape of long strips, with a length of 700 to 900 mm, a width of 20 to 30 mm, and a height of 20 to 30 mm.

[0019] In this embodiment, the rib plate 103 is set to be 700-900 mm long, 20-30 mm wide, and 20-30 mm high. There are 8 rib plates around the outer wall of the cylinder 101, that is, the interval between every two rib plates 103 is 45 degrees. Since the cylinder 101 needs to be cooled, if the rib plate 103 is too large, the cooling effect is not good, and if it is too small, the local strength of the cylinder 101 is not significantly increased. The rib plate 103 is set to be 700-900 mm long, 20-30 mm wide, and 20-30 mm high, which has a better comprehensive effect of cooling and increasing the strength of the cylinder 101.

[0020] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A crucible for smelting titanium and titanium alloys, characterized in that: It comprises a cylinder (101), the upper end of which is fixedly connected to a flange (102), and the outer side wall of which is fixedly provided with a rib plate (103); the distance between the center of the rib plate (103) and the lower end of the flange (102) is 0.8 to 1.2 m.

2. The anti-shrinkage crucible for smelting titanium and titanium alloys according to claim 1, characterized in that: The interval between every two rib plates (103) is 45 degrees.

3. The anti-shrinkage crucible for melting titanium and titanium alloys according to claim 1, characterized in that: The rib plate (103) is in the shape of an elongated strip, with a length of 700 to 900 mm, a width of 20 to 30 mm, and a height of 20 to 30 mm.

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